Jökull


Jökull - 01.12.1964, Blaðsíða 14

Jökull - 01.12.1964, Blaðsíða 14
' Tííe vsg Fig. 8. Aerial view of the ENE face of Snæfell. Arrow 1 shows the front of the recent terminal moraine of Hálsajökull, arrow 2 points to the old moraine. Photo: S. Thorarinsson, Sept. 9, 1964. 133) I quote the following description of this glacier: “The north-east glacier (A) heads in a deep cirque, whose walls rise nearly 200 m above the névé fielcl. The walls of volcanic tuff and breccias are very steep and intricately sculp- tured; no ice appeared to reach this glacier from the summit in 1937, even by avalanche. The glacier drops with two unpronounced steps to end just above the surrounding plateau at 800 m, the last half a kilometre is an area of irregular piles of moraine, very slightly vege- tated but with slip faces, indicative of melting ice cores. Although the pattern of moraines 72 suggests the lines of former transverse crevasses, there were no indications of present movement (op cit., p. 133).” My visit to this glacier on July 25th, 1964, was too short to allow any measurments in order to compare the thickness and extension of the glacier with that of 1937. If one may rely on the 1937-map as being tolerably correct, the snout has retreated a lot, and the lower part of the glacier got considerably thinner since 1937. A broad belt of terminal moraines rises above the snout, which is covered by abla- tion moraine. These terminal moraines look very fresh and are still very slightly vegetated JÖKULL 1964

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Jökull

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